code: def test_repr(self):
      instaboost_transform = TRANSFORMS.build(dict(type="InstaBoost"))
  
      self.assertEqual(
          repr(instaboost_transform), "InstaBoost(aug_ratio=0.5)"
      )
  
file_path: mmdetection/tests/test_datasets/test_transforms/test_instaboost.py
imports: import os.path
  import unittest
  import numpy
  from mmdet.registry import TRANSFORMS
  from mmdet.utils import register_all_modules
label_desc: Use image node_id 3 for calling the TestInstaboost obj's underlying member method code with example usage: obj.test_repr() without return types